/Engine/Plugins/Enterprise/DataprepEditor/Source/DataprepCore/Public/DataprepActionAsset.h
Add a copy of each step to the action
The index of the last added step or index none if no step is invalid
int32 AddSteps ( const [TArray](API\Runtime\Core\Containers\TArray)< const [UDataprepActionStep](API\Plugins\DataprepCore\UDataprepActionStep) * > & ActionSteps )